Spring-motor.



F. B. MARRIOTT.

SPRING MOTOR.

APPLICATION FILED 0011s, 1912.

1, 1 08,456. Patented Aug. 25, 191;

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FL B. MARRIOTT.

SPRING MOTOR.

APPLIGATIOH FILED 0011.18, 1912.

Patented Aug. 25, 1914.

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SPRING MOTOR.

APPLICATION FILED 0011a, 1912.

1 1 08,456. Patented Aug. 25, 1914.

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SPRING MOTOR.

APPLICATION TILED 0OT.18, 1912.

Patented Aug. 25, 1914.

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FRANCISGUS B. MARRIOTT, 0F HOMEWOOD, ALABAMA SPRING-MOTOR.

Specification of Letters Patent.

Patented A11 25, 1914.

Application filed October 18, 1912. Serial No. 726,505.

To (ZZZ whom it may concern:

Be it known that 1, Fmnorsons 13. MAR- RIOTT, a citizen of thellnited States, resid ing at Homewood, in the county of Monroe and State of Alabama, have invented certain new and useful Improvements in Springdlfotors, of which the following is a specification.

My invention rel atesto spring motors, and

particularly to the application of such motors to the operation ofchurns.

Many attempts have heretoforebeen made to operate churns, sewing-machines, etc, by means of spring motors, but the various mechanisms devised have, for the most part,

.proven imp noticed.

The object of the present invention is to provide a spring operated churn which shall overcome many ofthe defects of the prior devices, and which shall be especially adapted for domestic use. i

To this end the invention contemplates a motor of compact form and simple construc-. tion, arranged to be used in connection with ily understood, reference is had to the ac companying drawings, forming part of this specification, and in which:

;Figure 1 is. a central vertical section through the motor and churn complete,

1 parts being shown in elevation; Fig. 2 is a section. at right angles to Fig. 1, taken sub stantially onthe line 22- of Fig. 1, looking in the direction of the arrow; Fig. 3 is a side elevation of the motor mechanism casing, parts being broken'away; Fig. 1 is a complete side elevation of the casing and churn, parts being broken away, the view being taken from the direction opposite to 'thatof Fig. 3; Fig. 5 1s a top plan view of the motor casing, parts being broken awa Fig.6 is an elevation of the motor casing looking in; a direction at right angles to Fig. 4-; Fig. 7 1s a fragmentary perspective View of the hood removed; Flg. 8 1s a hor1- zontal section on an enlarged scale on the line 88 of Fig. 1; Fig. 9 is a detailed per spective view of the speed controlling mech anism, the parts being shown separated; Fig. 10 is a side elevation on an enlarged scale of my improved stop mechanism and associate parts, some of the parts being shown in section; Fig. 11 is a fragmentary enlarged sectional view of the governor mechanism; Fig. 12 is a section on an enlarged scale along the line 12- 12 of Fig. 1 i

Fig. 13 is detailed sectional elevation on an enlarged scale, substantially on the line 13-13 of Fig. 1 looking in the direction of the arrow; Fig. is an enlarged sectional view showing the thrust bearing for the driving shaft; and Fig. 15 is a fragmental-y sectional view on an enlarged scale showing the method of seeming the spring to the winding shaft.

Referring to the drawings in detail, 1 designates a circular, horlzontally disposed base plate to which are secured the vertical spaced standards 2 and 3, the standard 3 having an offset portion 1 near its upper end. Journaled in the standards 2 and 3 is a shaft 5 on which is loosely mounted a spring drum 6, having circular end faces 7 and S. Secured to the shaft 5 is one end of a coiled spring 9, the other end of which is secured at 12 to the drum, the spring lying within and being inclosed by said drum. The preferred method of attaching the spring to the shaft is by means of re inforcing plate 10and fastening device 11, as clearly shown in Fig. 15.

Secured to the face 7 of the spring drum is a spider 13, having an edge which projects radially beyond the drum, and to such. projecting cdgeis rigidly secured, as by means of shouldered rivets 15, a beveled main driving wheel 14. It will be noted that this wheel is in the form of an annular rim which snuglyfits the drum (3.

Adapted to mesh with the drive wheel 14 is a beveled pinion 16 rigidly secured to a drive shaft 18 1 which extends vertically through the baseplate 1 and isjournaled in a cross bar 19 which is supported by the standards 2'and 3. The weight of this shaft is preferably supported by means of a thrust hearing, which may consist, as shown in Fig. 14-, of .a collar 17 fast on the shaft and the series of balls 20 arranged between said collar and the bar19,.and running in suitable ace ways.

21 designates the dasher rod of the churn which is connected with the drive shaft 18 by means of any suitable form of readily detachable coupling, shown in this instance as a splice secured by means of thumb nuts. A collar 23 secured to the shaft 18, just below the base plate 1, prevents longitudinal movement of such shaft relative to such plate. A depending flange 24 is secured to.

the base plate 1 as by means of bolts 26 and is adapted to fit within the mouth of any suitable milk vessel or churn 25.

27 designates a cylindrical housing which incloses the base 1 and mechanism supported thereby, and is provided with an inturned flange 28 through which the bolts 26 pass in such a manner that the flange 24, the base 1, and the housing 27 are all rigidly united. The casing thus formed is adapted to be supported by the milk vessel, the flange 28 constituting an annular shoulder adapted to rest upon the upper edge 29 of such milk vessel, a suitable packing 30 of soft material being interposed if desired.

At opposite sides of the cylindrical housing 27 are arranged wings 31, and fitting upon such wings is a semi-cylindrical hood 32 adapted to inclose the upper part of the spring drum and drive wheel, as clearly shown in Fig. 7. The hood 32 is provided with wings 33 which, as shown in Fig. 5, form the top or cover of the housing 27, at each side of the hood. It will be noted that the joint between the hood 32 and housing 27 is a straight line 34, the wings 33 preferably gage the ratchet wheel 36, as clearly shown in Fig. 13. A pinion 39 meshes with the gear 35 and is carried by a stub shaft 40, journaled in the standard 3 and provided with a screw-threaded end 41. This screwthreaded end is adapted to fit'into a socket 42 carried by a winding crank 43, provided with a handle 44 and passing through a ferrule secured to the hood 32.

In order to readily start and stop the. motor, I provide an improved brake mechanism. This consists of a disk 46 secured to the drive shaft 18, just above thebase plate 1 and the spring pressed plunger 47, the end of which is adapted to engage such disk. The plunger 47 is supported in posts 48 between one of which and a collar 49 is arranged a helical spring 50. A knurled nut '51 is secured to the end of the plunger outside of the casing so that it may be conveniently operated. A cross-pin 52 near the inner end limits the outward movement of the'plunger, and an arm 53 near the outer end is adapted to engage a stop pin 54, set into the base plate 1, in such a manner as to hold the inner end of the plunger out of engagernent with the disk when the motor is running.

Secured to the shaft 18, just above the disk 46, is a wormwheel 55 which meshes with a spiral gear 56 carried by a shaft 57, journaled at its ends in the standard 3 and in a third standard'58. Secured to the shaft 57 is a collar 58 to which is secured one end of a number of leaf springs 59, to the center of each of which is secured a weight 60. The other end of said springs is secured to a collar 61 which slides loosely on a sleeve 62, which is itself loosely journaled on a reduced portion of the shaft 57. At its inner end, the sleeve 62 is provided with a head 63, to the inner face of which is secured a washer 64 of suitable soft material, adapted to provide a friction, surface. To the other end of. the sleeve 62 is secured a nut 65 in which is formed a notch 66. In this notch is secured one end of a lever 67, as by means of a screw 68. The free end of thelever 67 is turned upwardly and preferably terminates in a knob 69. i

A spiral slot 7 O isformed in a short tubular member 71, secured to a shaft 73, supported by the casing 27. The slot 7 O terminates in an enlarged opening 72, through which the knob 69 is adapted to pass in such a manner that the upturned end of the lever 67, adjacent the knob, works in the spiral slot 7 O. Secured to the shaft 73, outside of the casing, is a pointer'74, which pointer is adapted to play over a dial 78. The outer end 75 of the shaft 73 is preferably flattened, as shown in Fig. 9, and a knurled.

thumb nut 76 is attached to such flattened end as by means of a set screw 77. A reinforcing plate 7 9 is preferably arranged inside of the casing, and bolts 80 pass through such plate and the dial '78.

The dasher which is secured to the rod 21, i

as shown in Fig. 1, preferably consists of a U-shaped flattened tube 81, the open ends of which are closed by removable caps 82. Such U-shaped tube is secured to the rod 21 by means of braces 83. Attached to each side of the dasher are inclined blades 84, set in opposite directions so as to produce proper movement of the milk being churned. When it is desired to operate the churn, the spring is wound by means. of the handle44, unwinding being prevented by means of the pawl and ratchet shown in Fig. 13. The spring so wound drives the drum 6 and wheel 14 carried thereby, which in turn causes the shaft 18 and dasher rod 21 to rethe milk receptacle is avoided.

The starting and stopping of the motor can be controlled by means of the plunger 47, operated by the nut 51, as will be obvione from an inspection of Figs. 8 and 10. hen the arm53 is engaged with the stop pin 54, thepIungerdT is held away from the disk 4:6, and thechurn permitted to run.

,The speed at which the dasheris driven is controlled by means of the governor shown in Figs. 9 and 11. On the dial 78 are indicated various speeds, to any one of which the pointer may be set. The turning of the shaft 73 to move the pointer results in causing the lever 67 to travel in the slot 70, and to thus move the sleeve 62 longitudinally of the shaft 57. Such movement changes the relative normal )osition of the friction face 6% and the sli'ing collar 61. It is evident that when the friction face 61 is moved close to such collar, alow speed of the governor-shaft will produce sufficient centrifugal force to cause the weights 60 to move the collar 61 against the friction face, and thus act as a brake to prevent the speed from rising to a greater value. If, on the other hand, the friction face 64 is moved further away from the collar 61, engagement between said collar and friction face will only takeplace after a greater speed has been attained. 7

It is thought that the operation and many advantages of my improved mechanism will Copies of this patent may be obtained for be readily appreciated by those familiar with such matters, without further discusslon.

What I claim is: 1. In a spring motor inechanlsln, the combination with a circular baseplate having adepending annular flange, of motor 111G011? anism supported by said plate, and a dllVB shaft connected NVltll sa1d Il'lGClltLIllSlIl extending through said plate and projecting vertically downward, such shaft beingprd vided with a coupling located between the base plate and the lower edge of said flange,

whereby, when the lower portion of said shaft is removed, said flange may be capable of resting upon a flat support.

2. In a spring motor mechanism, the com bination with a horizontal base plate, of a pair of standards carried thereby, a spring coiled around said shaft, a shaft journaled in said standards, a beveled drive wheel carried by said shaft, a cross-bar extending be tween said standards below said drive wheel, a vertically disposed drive shaft journaled in said cross-bar, and passing downwardly through said base plate, a beveled pinion secured to said shaft, and in mesh with said drive wheel, and a thrust bearing between said shaft and cross-bar, wherebvthe weight of the former is supported.

In testimony whereof I have affixed my signature in presence of two Witnesses.

Witnesses:

J. F. BnYARs, D. D. Conn.

five cents each, by addressing the fflommissioner of Patents, Washington, D. G. i 

